Cultivator-tooth attachment.



W. L. HOLT.

GULTIVA'I'OR TOOTH ATTACHMENT.

.APPLIOATION FILED OCT. 14, 1911.

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A TTORNEY.

COLUMBIA I'LANOUIIAI'II (0..nsummuu. u,

W. L. HOLT.

OULTIVATOE TOOTH ATTACHMENT.

APPLICATION FILED OCT. 14, 1911 Patented Mar. 12, 1912.

2 SHEETS-SHEET 2.

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v v I ATTORNEY.

WITNESSES: '5 J5 UNITED STATES PATENT OFFICE.

WILLIAM LINDSAY HOLT, F VINCENNES, INDIANA, ASSIGNOR TO HARTMAN MANU- FACTURING COMPANY, OF VINCENN ES, INDIANA, A CORPORATION OF INDIANA.

CULTIVATOR-TOOTH ATTACHMENT.

To all whom it may concern:

Be it known that I, VVILLIAM L. HOLT, a citizen of the United States, residing at Vincennes, in the county of Knox and State of Indiana, have invented a new and useful Cultivator-Tooth Attachment, of which the following is a specification, reference being had to the accompanying drawings and to the letters and figures of reference marked thereon.

This invention relates to gang cultivators of the type that has shovels or teeth and constructed so as to be used as a walking cultivator and which may be adapted to be used as a riding cultivator, the invention having reference particularly to the appliances whereby the shovels or teeth are connected with the gang frames of the cultivators.

The object of the invention is to provide improved interchangeable attachments whereby spring teeth may readily be substituted on the gang frames for the spring-trip type of cultivating shovels and permitting the change from the spring-trip type to the spring-tooth type, by the user as occasion may require, to the end that the farmer may be enabled to have in one machine all the advantages of two machines of different types at the minimum cost; a further object being to provide cultivator tooth attachments of the above mentioned character that will be adapted to be cheaply produced and permit of the use of one pattern of spring-tooth in each of the different positions required in two gangs, so that a relatively small number of teeth is required to be kept in stock for emergency repairs in case of accidental breakage.

A still further object is to provide springtooth attachments of the above mentioned character that shall be so constructed as to be interchangeable to different positions'relative to the gang frames, in order that manufacture and repairs may be expeditiously and economically carried on.

Wit-h the above mentioned and minor objects in View, the invention consists in cer tain novel features of construction in cultivator gangs, and in the novel reversible and adjustable spring-tooth attachment, and also in the parts and combinations and arrangements of parts as hereinafter particularly described and claimed.

Referring to the drawings, Figure 1 is a Specification of Letters Patent.

Application filed October 14, 1911.

Patented Mar. 12, 1912. Serial No. 654,598.

rear perspective view of a culitvator constructed substantially in accordance with the invention, the sulky or carriage of the cultivator being shown in broken lines; Fig. 2, a perspective view of a cultivator gang having the spring-trip type of shovel connected therewith; Fig. 3, a perspective view of the crosshead for holding the cultivating implements, either the spring-trip type or the spring tooth type; Fig. 4, a perspective view of one of the principal parts of the springtooth attachment; Fig. 5, a perspective view of one of the locking devices for securing the cultivating implements to the crosshead; Fig. 6, a sectional elevation approximately on the plane of the line A A in Fig. 1; Fig. 7, a top plan of one of the gangs of the spring-tooth type of cultivator provided with the improved attachments; Fig. 8, a fragmentary vertical section on the plane of the line B B in Fig. (3; Fig. 9, a perspective view of one of the spring-teeth; Fig. 10, a 't'ragl'nentary section on the plane of the line C C in Fig. 8; and Fig. 11., a fragmentary section as on the plane of the line D D in Fig. 8 showing the mode of securing the spring-trip type of implement to the crosshead in lieu of the spring tooth type.

Similar reference characters throughout the different figures of the drawings indicate like parts or features of construction herein referred to.

In order that a clear understanding may be had of the objects and function of the invention, the well known parts of the cultivator to which the invention is applicable are briefly referred to. The machine comprises two wheels 1 and 2 and an arched axle 3 with which two beams 4L and 5 are suitably connected at their forward ends, the beams preferably being tubular and the rear end of each beam is provided with a suitable head preferably comprising two members 6 and 7 secured to the beam, one of the me1nbers having a projecting tail piece 8 and 9 thereon to each of which a handle holder 10 is suitably secured, one handle holder supporting a handle 11 and the other one supporting a handle 11, so that each beam is provided with a controlling handle. The uppermost member 7 has a boss 12 thereon. The two beams are provided each with a crosshead, one crosshead comprising a main central portion 13 thatis connected to the beam 4, the other crosshead comprising a similar main portion 13 that is connected to the beam 5. Each crosshead preferably has an opening therein to receive the head that is on the rear end of the beam, so that a bottom bearing portion 14 is provided and it has a boss 15 upon its inner side on which the member 6 is pivotally seated, there being a bushing 16 adjustably arranged in the upper portion of the crosshead so as to normally have contact with the boss 12, and a pivot bolt 17 is inserted through the bottom portion 14 and also through the members 6 and 7 and the bushing 16 and provided with a nut 18 for holding the several parts together. A setscrew 19 is inserted in the wall of the portion 13 and extends to the bushing for assisting to hold the bushing in place.

In order to form sockets in the crosshead two vertical walls 20 and 21 are formed so as to connect the upper and lower portions of the crosshead together, and they preferably are apertured and placed apart a suitable distance and preferably equi-distant from the pivot bolt 17 A plate 22 extends horizontally from the upper portion of the crosshead beyond the wall 20 and has a slot 23 therein, a bottom plate 24 extending from the portion 14 beyond the wall 20 parallel with the plate 22 and it has a slot 25 therein corresponding to the slot 23, an end wall 26 being connected integrally to the plates 22 and 24, and a partition 27 extends from the plate 22 to the plate 24 midway between the walls 20 and 26, the partition 27 having a gap therein between the slots 23 and 25, so that two horizontally extending sockets are formed in one end portion of the crosshead, and the slots 23 and 25 constitute keyways. The opposite end of the crosshead comprises a vertical plate 28 that extends from the main portion 13 beyond the wall 21 and has a slot 29 therein, and also a similar plate 30 parallel to the plate 28 having a slot 31 therein to constitute keyways, an end wall 32 connecting the plates 28 and 30 together, the end wall being parallel to the wall 21 and having a horizontal rib 33 on its upper portion and a similar rib 34 on its lower portion extending horizontally, there being a bolt hole 35 in the end wall between the two ribs, and two partition walls 36 and 37 connecting the plates 28 and 30 together above and below the slots therein, the partition being in a plane midway between the wall 21 and the wall 32 so that two vertical sockets are formed in the end portion of the crosshead. The crosshead is so arranged on the beam as to bring the vertical sockets between the two beams of the gangs and the horizontally arranged sockets outwardly beyond the beams. A bolt 38 is placed in the end wall 32 and has a nut 39 thereon. Locking devices are provided for each end of the crosshead and are inserted in the keyways, each device comprising a gib 40 having one straight side 41 and a head 42 having a slot 43 there in, the head extending from the straight side beyond the opposite side 44, the face of the side 44 being parallel with the straight side 41 a suitable distance from the head, the farther portion being beveled as at 45, and the smaller end of the gib has a lug 46 thereon projecting beyond the straight side 41. The gib may be inserted through the slots in either end of the crosshead until "the head comes in contact with the crosshead and then the lug 46 is moved into engagement with the opposite side of the crosshead. A wedge bolt 47 is a companion device for each gib and is insertible into the slots in the crosshead against the short straight side 44 and through the slot 43, and it is provided on one side thereof with a wedge 48 adapted to slide against the beveled portion 45 of the gib, the wedge bolt being provided with a nut 49 designed to have contact with the outer side of the head 42. The forward sides of the inner end portions of the two crossheads are provided respectively with ears 50 and 50 provided with pivot pins 51 and 51 respectively to which parallel rods 52 and 52' are connected respectively, the rods being suitably connected with the axle 3, so as to maintain the crossheads in parallel relation to the axle.

As will be seen in Fig. 2, there are two well known forms of spring-teeth cultivating implements combined in one gang, there being a curved shank 53 that has one end portion secured horizontally in one of the horizontal sockets in the outer end portion of the crosshead, the shank having a shovel 54 thereon, and a vertical shank 55 is secured in one of the vertical sockets in the inner end portion of the crosshead and has a shovel 54 thereon. The manner of securing the shank 53 is substantially the same as illustrated in Fig. 8 by means of one of the gibs and key bolts arranged vertically, and the manner of securing the shank 55 so as to be adjustable vertically is illustrated in Fig. 11, a filling piece 56 being placed at one side of the shank in case the shank is not sufiiciently thick to approximately fill the socket. It should be understood that the shanks may be placed in either one of the two sockets, and in some cases there may be two shanks placed in both sockets in each end of the crosshead and secured by a gib and a keybolt arranged between the two shanks. When the spring-trip cultivators are used and if fenders are desired a, reach bar 57 is secured to the inner end of each crosshead and supports an arm 58 at its forward end, the arm carrying a fender 59 in advance of the foremost one of the shovels.

In order to enable the farmer to readily change from the spring-trip type to the spring-tooth type of cultivator, four universal beams are provided for each machine, there being two for each gang, and the beams are all formed substantially alike so as to be interchangeable. One beam 60 has one end inserted in the horizontal socket in the outer end portion of one crosshead and is secured therein substantially as shown in Fig. 8, the beam extending rearwardly from the crosshead and is provided at its rear end with a spring-tooth holder comprising a flat shank 61 placed vertically against one side of the beam and having a lug 62 on its upper end engaging the top of the beam, the shank being secured removably to the beam by means of a bolt 63, the holder proper comprising a flat plate 64 extending horizontally and outwardly from the shank and provided at its end with a downward extending lip 65. A well known form of spring-tooth 66 is secured to the under side of the holder plate 64 by means of a bolt 67 and extends rearwardly and downwardly. The beam 60 is provided with a second spring-tooth holder which is substantially the same in form as the holder above described but is differently arranged on the beam and comprises a flat shank 68 arranged vertically against the inner side of the beam and provided on its upper end with a lug 69 engaging the top of the beam, the shank being secured to the beam by a bolt 70, the holder proper comprising a flat plate 71 extending horizontally and in wardly from the shank in one and the same plane with the plate 64, and it has a downwardly extending lip 72 on its end. Another spring-tooth 66 of the same size and shape as the spring-tooth 66 is placed against the under side of the plate 71 against the lip 72, and is secured to the holder plate by a bolt 73 and extends rearwardly and downwardly. The shank end of each spring-tooth has a bolt hole 74 therein to receive the securing bolt, and the downwardly curved end has two slots 75 and 75 therein to receive securing bolts 76 and 76 whereby a shovel 77 or cultivating implement is secured to each spring-tooth. The beam 60 preferably has a bolt hole 78 therein between the bolts 63 and to receive either one of the bolts in case it is desired to shift the relative position of the two spring-tooth holders on the beam. The supported end portion of the beam has a bolt hole 78 therein to receive the bolt 38. One of the four universal beams is secured in reversed order to the end wall 32 and ex; tends forward from the inner end of the crosshead, being secured by the bolt 38 between the ribs 33 and 3 1 and constitutes a beam 60 on which two holders are mounted as above described, one holder corresponding to the holder 71 in a different relation constituting a holder 71 to which a spring-tooth 66 is secured and extends rear-wardly, the other holder corresponding to the holder 641- in a relatively different position constituting a holder 6st to which another spring-tooth 66 is secured, the holder 64 having a shank 61 and the holder 71 having a shank 68 secured to opposite sides of the beam 60. Preferably an ear 79 is secured to the outer side of the beam 60 partially by the bolt 38 and is connected to the upper portion of the pivot pin 51. Another one of the four universal beams is secured to the outer end of the crosshead of the jopposite gang so as to constitute a beam 60 and has spring-tooth holders 64 and 71"substantially like those above described secured thereto to the opposite sides of the beam in reverse order from that illustrated in Fig. 4 and supports another spring-tooth 66 and a similar spring-tooth 66. The remaining one of the four beams is secured to the inner end of the crosshead so as to constitute a beam 60" and the holders arranged as on the beam 60 constitute holders 64 and 71", the latter supporting a spring-tooth 66 and the other one supporting a spring-tooth 66. Preferably an car 79 is secured to the beam 60 by the bolt 38 and is connected to the upper portion of the pivot pin 51. WVhen a fender is desired a suitable clamping holder 80 is secured by the bolt 67 to the under side of the shank portions of the spring-teeth that are supported by the holders 64 and 64 for carrying the arms 58 and fender 59 thereon.

In practical use, the gangs are drawn forward in the usual manner and guided by the operator and substantially the same result is obtained in practice as by non-intel-changeable spring-tooth cultivators. In case a spring-tooth is accidentally broken it will be readily seen that the remnant may be quickly removed from its holder and the spare one applied in its place; and in case it be desired to use the spring-trip type of implement it is only necessary to detach the four universal beams from the two crossheads and apply the other type of implement to the same crossheads, the expense of keeping two pairs of crossheads on hand being avoided. It will be understood also that one spare spring-tooth holder only is sufficient to take the place of any one of the eight spring-tooth holders that may accidentally become disabled.

Having thus described the invention, what is claimed as new is 1. A cultivator tooth attachment including a beam having a bolt hole therein, a springtooth holder comprising a flat plate having a lip thereon and a. flat shank having a lug thereon, the shank being at one side of the beam and having a bolt therein that is removably secured in the bolt hole, the lug engaging the top of the beam, and a bolt zontal socket and also a keyway in one end portion and a horizontal bolt in the opposite end portion thereof, a locking device in the keyway, and two universal interchangeable beams having each a spring-tooth holder thereon, one end of one of the beams being inserted in the horizontal socket and secured therein by the locking device, the corresponding end of the other beam being secured to the crosshead by the bolt, and two "spring-teeth secured to the two springtoothed holders respectively.

3. A cultivator tooth attachment including a beam having a bolt hole in one end portion thereof, two spring-tooth holders having each a flat shank arranged in contact with the beam, each shank having a lug thereon engaging the top of the beam, the two shanks being at opposite sides of the beam, one shank being at one end portion and the other shank at a distance from the opposite end of the beam away from said bolt hole, bolts securing the shanks to the beam, and bolts connected to the holders for securing spring-teeth thereto.

4. A cultivator tooth attachment including a horizontally arranged crosshead hav ing two horizontal sockets and a vertical keyway in one end portion thereof, the opposite end portion of the crosshead having two vertical sockets and a horizontal keyway and also a bolt hole therein, the bolt hole extending horizontally in the outer wall of the outermost one of the vertical sockets, the sockets being adapted to receive the shanks of cultivating implements, the keyways being adapted to receive looking devices for securing the shanks in the sockets, the bolt hole being adapted to re ceive a bolt for securing a shank to the outer wall of the outer one of the sockets.

5. In a cultivator, the combination of a horizontally arranged cross head having two horizontal sockets and a vertical keyway in one end portion and two vertical sockets and a horizontal keyway and also a bolt hole in the opposite end portion thereof, two identically shaped interchangeable beams having each an aperture in one end portion thereof, the apertured end portion of one of the beams being inserted in one of the horizontal sockets, the apertured end portion of the other one of the beams being arranged on the end of the crosshead at said bolt hole, a bolt in said bolt hole and said aperture, a gib and a wedge-bolt in the vertical keyway securing the beam in the socket, and a plurality of identically shaped spring-tooth holders, two of the holders being secured to one of the beams, and two others ofthe holders secured to the remaining one of the beams.

6. In a cultivator, the combination of a crosshead having a socket therein and also keyways in opposite walls of the socket, a spring-tooth shank in the socket, a gib in the keyways having a slotted head on one end engaging one of said walls and having a lug on its opposite end engaging the opposite one of said walls, said gib having a beveled side portion, a wedge bolt in said keyways in cont-act with said shank and having awedge thereon in contact with said beveled portion of the gib, said bolt extending through said slotted head, and a nut on said bolt seated on said head.

7. In a cultivator, the combination with an axle, a draft beam and a rod pivotally connected with the axle, a crosshead pivotally connected to the draft beam, the crosshead having an ear thereon, and a pivot-pin in the ear extending through the rod, of a plurality of interchangeable beams secured to opposite end portions of the crosshead, an ear secured to one of the beams and thereby connected with the crosshead and having connection with the said pivot-pin, and a plurality of cultivating implement shanks secured to said interchangeable beams.

8. In a cultivator, the combination of a crosshead having an opening therein and a boss in the opening, a bushing mounted adjustably in the crosshead opposite the boss, a beam in the opening seated on said boss and in contact with said bushing, a bolt eX- tending through the beam and the bushing and also through the boss and secured in the boss, a nut on the bolt seated on the outer end of the said bushing, and cultivating implements mounted on the crosshead.

In testimony whereof, I afiiX my signature in presence of two witnesses.

l/VILLIAM LINDSAY HOLT.

Witnesses:

J. R. MILBURN, A. M. l/VILLoUeHBY.

Copies of this patent maybe obtained. for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

